How to empty the water tank of Volkswagen Tiguan

As long as the return pipe does not block the smooth flow of water, there is no need to manually exhaust; There are two water pipes on the kettle of this car, one is to feed the engine, and the other is to the return pipe at the water tank or cylinder head. It should be noted that the lid should not be screwed on immediately after adding enough water, and the engine can only be screwed on when the running water in return pipe is continuous. If the kettle cover is screwed on in advance, the air in the water pipe will not be discharged, and the water in the cavity system will not circulate, which is prone to high temperature.

2. Don't bring back the water pipe.

There is only one water pipe on the kettle, so this kind of car must be vented manually, otherwise how much antifreeze can be transferred by adding mu key; What I want to say here is that the exhaust position must be selected correctly, otherwise the air exhaust will not be complete.

3. Exhaust method of BMW equipped with electronic water pump.

A, after filling antifreeze, open the water tank cover, then insert the key and turn on the ignition switch (don't start the engine, but turn on the power supply).

B, air conditioning warm air mode, maximum temperature modulation, minimum air volume modulation.

C, driving lights, namely the headlight switch to the right.

D, step on the accelerator to the end, about 10 seconds, you will hear the sound of the electronic retard water pump working.